/*
 * Copyright (C) 2025 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the 'License');
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an 'AS IS' BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

export namespace FooNamespace {
  export function foo(): null {
    return null
  }

  export class MyClass {
    public greet(): string {
      return "Hello from MyClass!";
    }
  }

  export type MyType = string | number;

  export interface MyInterface {
    id: number;
    name: string;
  }

  export enum MyEnum {
    Red,
    Green,
    Blue
  }
}

export namespace Utilities {
  export namespace Strings {
    export function reverse(str: string): string {
      return `${str} Forever 18 years old`
    }
  }
}

export namespace EmptyNamespace {
}